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If symptoms of poor performance develop, the following chart can be used as a guide to correct the problem. When
diagnosing faults in operation of the wrench, always check that the hydraulic power source is supplying the correct
hydraulic flow and pressure to the tool as listed in the following table. Use a flow meter known to be accurate. Check the
flow with the hydraulic fluid temperature at least 80
SYMPTOM
Tie tamper does not run.
Tie tamper does not run effectively.
Tie tamper operates slow.
12 ► TT46 User Manual
TROUBLESHOOTING
F/27
C.
o
o
CAUSE
Power unit not functioning.
Couplers or hoses blocked.
Pressure and return line hoses
reversed at ports.
Mechanical failure of piston or
automatic valve.
Power unit not functioning.
Couplers or hoses blocked.
Low accumulator charge (pressure
hoses will pulse more than normal).
Oil too hot (above 140°F/60°C).
Low GPM supply from power unit.
High back-pressure.
SOLUTION
Check power source for proper flow
and pressure, 4-6 GPM/14-23 LPM,
1500-2000 psi/106-140 bar. TT46233
Model, 7-10 GPM/26-38 LPM.
Remove restriction.
Be sure hoses are connected to their
proper ports.
Disassemble tamper and inspect for
damaged parts.
Check power source for proper flow
and pressure, 4-6 GPM/14-23 LPM,
1500-2000 psi/106-140 bar. TT46233
Model, 7-10 GPM/26-38 LPM.
Remove restriction.
Recharge accumulator. Replace
diaphragm if charge loss continues.
Provide cooler to maintain proper oil
temperature (140°F/60°C).
Check power source for proper flow
and pressure, 4-6 GPM/14-23 LPM,
1500-2000 psi/106-140 bar. TT46233
Model, 7-10 GPM/26-38 LPM.
Check hydraulic system for excessive
back-pressure (over 200 psi/14 bar).
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